神舟四号飞船微波辐射计定标和检验(Ⅱ)——微波辐射计地物参数反演及其检验  

Calibration and Validation of Microwave Radiometer (RAD) on-aboard SZ-4 Spacecraft (Ⅱ):Retrivals of Geophysical Parameters from RAD Brighness Temperatures and Their Validations

作　　者：王振占[1] 李芸[2] 

机构地区：[1]中国科学院空间科学与应用研究中心,北京100080 [2]国家海洋技术中心,天津300111

出　　处：《遥感学报》2005年第1期39-44,共6页NATIONAL REMOTE SENSING BULLETIN

基　　金：国家重点项目"神舟四号微波辐射计定标;检验;评价"项目资助。

摘　　要：针对神舟四号飞船微波辐射计(RAD)特殊入射角、频率的特点,开发了海面和大气参数的反演算法。然后用这个算法模拟RAD不同通道的亮温。最后用发射后重新定标的亮温结合国外大洋浮标、小岛上的气象探空数据以及其他星载微波辐射计产品,对RAD反演算法进行改进,最后给出海面温度、风速和大气水汽含量的反演的结果,并且对这些结果进行了检验。We developed a sea surface emissivity model and atmospheric model for special frequencies and incidence angles of RAD. After simulated brightness temperatures being received by RAD main beams at SZ-4 spacecraftat levels, some statistical algorithms of retrieving sea surface temperatures, wind speeds, volume water vapor contents and volume liquid waters of cloud above the global ocean were developed. The retrieval results were compared and validated with those from global NDBC (National Data Buoy Center) buoys, radiosondes, and other space-borne microwave radiometer products.

关 键 词：神舟四号飞船 微波辐射计 地物参数反演 

分 类 号：V441[航空宇航科学与技术—飞行器设计]